Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
11/03/2024, 12:44
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20240221-en
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20240226-en
12 signatures
150 seconds
General
- Target file.exe
- Size 419KB
- Sample240311-pygrlaba3x
- SHA256 585d1fb4f288974b683c5abfb10c97d7d2ae3f59c2bcfd78ba272e3be2cd7815
- MD5 8a716466aa6f2d425ec09770626e8e54
- SHA1 62fb757ea5098651331f91c1664db9fe46b21879
- SHA512 54f11067e400347834689b4532ae53b00ec96a3ca90a2c21de27942f4ca30306fdda0522c1a3a4cde047ad650162e2d8313205220acaab4cc60e010965690940
- SSDEEP 6144:QTCsE3O4yuS5O0RBOInaCa6G6ypdf4Bf7e/DnjBeq04fVXOUvE0CGsSE9BLM:2E3O5uOO0mInnGZCTS84fZLtw
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
xworm
Version
-
5.0
C2
-
5.182.87.154:7000
Mutex
-
VMFidhoqn75fm5lJ
Attributes
-
Install_directory
%Temp%
-
install_file
mdnsresp.exe
aes.plain
Signatures
- Detect Xworm Payload 1 IoCs
resource yara_rule behavioral2/memory/2224-10-0x0000000000400000-0x0000000000410000-memory.dmp family_xworm - PureLog Stealer
PureLog Stealer is an infostealer written in C#.
- PureLog Stealer payload 1 IoCs
resource yara_rule behavioral2/memory/4476-6-0x0000000004E80000-0x0000000004EC8000-memory.dmp family_purelog_stealer - Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation file.exe Key value queried \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation file.exe - Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mdnsresp.lnk file.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mdnsresp.lnk file.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4476 set thread context of 2224 4476 file.exe 92 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 11 IoCs
pid Process 1420 powershell.exe 1420 powershell.exe 556 powershell.exe 556 powershell.exe 3496 powershell.exe 3496 powershell.exe 4456 powershell.exe 4456 powershell.exe 1992 powershell.exe 1992 powershell.exe 2224 file.exe - Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 4476 file.exe Token: SeDebugPrivilege 2224 file.exe Token: SeDebugPrivilege 1420 powershell.exe Token: SeDebugPrivilege 556 powershell.exe Token: SeDebugPrivilege 3496 powershell.exe Token: SeDebugPrivilege 4456 powershell.exe Token: SeDebugPrivilege 1992 powershell.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2224 file.exe - Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 4476 wrote to memory of 1420 4476 file.exe 90 PID 4476 wrote to memory of 1420 4476 file.exe 90 PID 4476 wrote to memory of 1420 4476 file.exe 90 PID 4476 wrote to memory of 2224 4476 file.exe 92 PID 4476 wrote to memory of 2224 4476 file.exe 92 PID 4476 wrote to memory of 2224 4476 file.exe 92 PID 4476 wrote to memory of 2224 4476 file.exe 92 PID 4476 wrote to memory of 2224 4476 file.exe 92 PID 4476 wrote to memory of 2224 4476 file.exe 92 PID 4476 wrote to memory of 2224 4476 file.exe 92 PID 4476 wrote to memory of 2224 4476 file.exe 92 PID 2224 wrote to memory of 556 2224 file.exe 93 PID 2224 wrote to memory of 556 2224 file.exe 93 PID 2224 wrote to memory of 556 2224 file.exe 93 PID 2224 wrote to memory of 3496 2224 file.exe 97 PID 2224 wrote to memory of 3496 2224 file.exe 97 PID 2224 wrote to memory of 3496 2224 file.exe 97 PID 2224 wrote to memory of 4456 2224 file.exe 101 PID 2224 wrote to memory of 4456 2224 file.exe 101 PID 2224 wrote to memory of 4456 2224 file.exe 101 PID 2224 wrote to memory of 1992 2224 file.exe 103 PID 2224 wrote to memory of 1992 2224 file.exe 103 PID 2224 wrote to memory of 1992 2224 file.exe 103
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4476 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABMAG8AYwBhAGwAXABUAGUAbQBwAFwAZgBpAGwAZQAuAGUAeABlADsAIABBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAHIAbwBjAGUAcwBzACAAZgBpAGwAZQAuAGUAeABlADsA2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1420
-
-
C:\Users\Admin\AppData\Local\Temp\file.exeC:\Users\Admin\AppData\Local\Temp\file.exe2⤵
- Checks computer location settings
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2224 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\file.exe'3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:556
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'file.exe'3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3496
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\mdnsresp.exe'3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4456
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'mdnsresp.exe'3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1992
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
- MD5 968cb9309758126772781b83adb8a28f
- SHA1 8da30e71accf186b2ba11da1797cf67f8f78b47c
- SHA512 4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 18KB
- SHA256 599a27d413252fc423b3f3f0790a900ed3dfcd77825945be64aa2d8a5ee22845
- MD5 1d29d89f4e75b09c0e0ebb36a241f372
- SHA1 9171d5d4f837dd2ca01149e2c98c468ae57f3608
- SHA512 91860d429cab36532ddbfe7fad754351f14c3db2252f35cd08c3a8decae1d2ef1107413c2bda29e4e82f9d918a035e9adec50a285074595cf57b5f1c3934d0e8
- SSDEEP 384:0sf+BuaST73We9Rv4Up9C7lXqno7M/+jwPutQNPx8md1EWVXmwFnGB75:BfHaSee9J4tlanbywGtsOArdfG15
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 18KB
- SHA256 2833ef07b0d1540609fd541e65a6d12c847e9ca23a7e57ec3c34c807370e5494
- MD5 362597b6f3a0e57a4cabe748234ca0ad
- SHA1 3053689d00491d2e7f09ea7284b4976022ca4a26
- SHA512 17e5c45e4fbc4d7fca118d997ce751161048f357e278b3b07f04e938b9d6583139cce7cb7f6167b88b3149cb56252f7f6270a13fdd4fc57ba7a75fde18302a8e
- SSDEEP 384:jsf+B+913ORvX8FM30dBi2vn4o9oHUKeY19bGZcYoZ+x5EdVzlL+nfkki0SO1:Yfj3Oug0doOtoHUNAlYxx5EdGMki0H
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 18KB
- SHA256 e5f82161c5c36db6964d8c45ee555ddb223740956b5dd4fcc6f308024b3d4670
- MD5 282bdf8d537b615b8ade03d242e87464
- SHA1 8575757431e2353e40e5b27de3ca8783a06ecc41
- SHA512 9d83cffa4ba088b6452b028ae467cdf82496067c479165810b9f9b4a98d9f06f0cbde056c1967058a9c6dbdcf9b8556c4d8c73b784f560f3e0fa412beb241957
- SSDEEP 384:56+BB910bWkxE0Xbizck3o9bnCWSKYc9LG3opz+h5Bdnq+nUUkki0SO1:YS0bW7lLIbCWSNAmxh5Bd/Unki0H
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 18KB
- SHA256 d9692593a94ac13cd0c275b9d641f89ba309358feb5d6b97cb6e36bef3d30782
- MD5 70d025eca7d79d96329801bedd6ae68f
- SHA1 119974d0fb11548b83876119ba72ae3b76a13847
- SHA512 ceee0f49403e882f263dca94301795a8b8a21d670a4efd6d015462c669d568ac32bc30a9455ebf7befb39cd5cce21b4b63dbc94d1b19e4532caef502626e8ee0
- SSDEEP 384:Vsf+BC9i+Z+2VB4s7LzwMizJk+o9o2ThK6seYLME/1a3SoesfYxgcjEDkyQ0gdEN:KftbV9Lzw7ejo2ThNgrASA9CED/Ce/
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_p5153zfz.e4f.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512